Beat the Heat and Save Money with Indow Window Inserts

This summer, the experts are predicting higher-than-average temperatures across the USA and that means scorching temperatures and skyrocketing energy bills.

But what if you could keep your home cool and comfortable without cranking up the AC all day? Indow window inserts are your secret weapon for staying cool and comfortable, all while enjoying the summer sun and saving money on your energy bills.

Indow Window Inserts: Your Summer Comfort Solution

Indow window inserts are a game-changer for keeping your home cool and comfortable all summer long. Here's how they work:

  • Block Heat, Not Light

    Our inserts boast an impressive U-factor of .44, which means they significantly resist heat transfer from the outside. Think of it as a force field against scorching summer temperatures. At the same time, our inserts have an SHGC of .57, allowing ample natural light to fill your home without the heat gain associated with traditional windows. That's a win-win! Unlike heavy curtains that block all light, Indow inserts let you enjoy the beauty of sunshine while staying cool.

  • Superior Air Sealing

    Air leakage is a major culprit for heat gain. Our patented Snug-Fit compression tubing results in an incredibly low air leakage rate of .02 cfm/sq ft (cubic feet per minute per square foot). In simpler terms, this means they create a near-airtight seal around your windows, preventing hot outside air from sneaking in and disrupting your cool comfort. The result? Less reliance on your air conditioner and significant energy savings!

  • Energy Savings & Cost Control

    Rising energy costs, particularly for air conditioning, are a growing concern. By reducing heat gain and improving efficiency, Indow inserts can significantly lower your reliance on AC (as well as lower heating costs in the winter). With Indow inserts, you’re not only saving money on your energy bills, but helping to save the planet from climate change as well.

  • Rising energy costs are putting a strain on household budgets. Investing in energy-efficient solutions like Indow inserts can help consumers save money on their utility bills.

    National Energy Assistance Directors Association

  • Affordability & Investment Value

    Replacing windows entirely is a costly and disruptive project. Indow inserts offer a much more affordable solution that can also increase the value of your home. Plus, Indow inserts are eligible for a federal tax credit of 30% (up to $1200) through the Energy Efficient Home Improvement Credit, making them an even smarter financial choice.

According to, the average cost to replace a window is $850 per window, but can be up to $2,100!

More Than Just Summer Relief

While Indow inserts excel at keeping you cool in summer, they offer year-round benefits:

  • Reduced Noise Pollution: Indow inserts significantly reduce outside noise, creating a quieter and more peaceful living environment.

  • Year-Round Comfort: During the winter months, Indow inserts help retain heat, making your home more comfortable and reducing your heating bills.

  • Block Unwanted Guests: Our air-tight, Snug-Fit system not only keeps air from escaping, but blocks pollen, dust, smoke, condensation, and other unwanted pollutants.

Your Investment in a Cooler, More Comfortable Home

Don't let the summer heat drain your comfort or your wallet. Indow window inserts are the smart solution for a cool, comfortable, and energy-efficient home. But don’t take our word for it! Here’s some of the glowing 5-star reviews from customers who have experienced the Indow difference:

  • Kristin Faurest


    We kept our beautiful old windows while reducing our AC use by a third! Which is a lot in our hot Louisville summers! They are also easier to handle than heavy storm windows.

  • Christina M


    Can’t say enough good things about our Indow inserts. My partner and I bought a beautiful Mid Century home in Tucson with original 1958 single pane windows. The first couple of brutally hot months were rough, and even with our AC running we found ourselves sweating through the night and uncomfortable whenever we were standing by the windows.

    We got our inserts in July and it’s the best purchase we’ve made for the house yet. As soon as they were installed you could notice the difference in the temperature in our home. To test them out we left one room without inserts and then compared the difference in temperature using a surface temperature gun. There was a 12 degree difference!

    We don’t have YoY data, but we compared our usage here to the usage at our old rental. That home had a newer AC unit and double pane windows, but our energy bill in our home with an older AC and window inserts dropped by 27%!

    We’ve kept them in all year round, but it’s still easy to pop them out when we want to air out a room. On top of the energy savings we also got a $1,000 credit on our taxes!

  • ryan hladky


    I've had these window inserts for about a year and they work great. The noise reduction is very noticable and it really seals off my drafty windows. I noticed my air conditioner didn't have to work as hard last summer, the house stayed a more even temperature, and I had a reduction in energy usage.

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